org.eclipse.osbp.runtime.web.vaadin.databinding/src/org/eclipse/osbp/runtime/web/vaadin/databinding/model/internal/PropertyValueProperty.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *         Florian Pirchner - Initial implementation
 */

package org.eclipse.osbp.runtime.web.vaadin.databinding.model.internal;

import org.eclipse.core.databinding.property.INativePropertyListener;
import org.eclipse.core.databinding.property.ISimplePropertyListener;
import org.eclipse.osbp.runtime.web.vaadin.databinding.properties.AbstractVaadinValueProperty;
import org.eclipse.osbp.runtime.web.vaadin.databinding.properties.Util;

import com.vaadin.data.Property;
import com.vaadin.ui.AbstractField;

/**
 */
public class PropertyValueProperty extends AbstractVaadinValueProperty {

	public PropertyValueProperty() {

	}

	public INativePropertyListener adaptListener(ISimplePropertyListener listener) {
		return new PropertyValueChangeListener(this, listener);
	}

	@Override
	public Object getValueType() {
		return Object.class;
	}

	@Override
	protected Object doGetValue(Object source) {
		Property<?> property = Util.getProperty(source);
		return property.getValue();
	}

	@SuppressWarnings("rawtypes")
	@Override
	protected void doSetValue(Object source, Object value) {
		// if (source instanceof AbstractField) {
		// AbstractField field = (AbstractField) source;
		// if (!field.isValid()) {
		// // workaround - if value is invalid, then property#setValue will
		// // not change the field value. So we need to reset the value
		// // internally to the datasource value
		// field.discard();
		// }
		// }

		Property<Object> property = Util.getProperty(source);
		property.setValue(value);

		if (source instanceof AbstractField) {
			AbstractField field = (AbstractField) source;
			if (field.getValue() != value) {
				// workaround - if value is invalid, then property#setValue will
				// not change the field value. So we need to reset the value
				// internally to the datasource value
				field.discard();
			}
		}
	}

}